Method WriteHeader

IO/XML/vtkXMLUnstructuredDataWriter.cxx:274–363

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//------------------------------------------------------------------------------
int vtkXMLUnstructuredDataWriter::WriteHeader()
{
  vtkIndent indent = vtkIndent().GetNextIndent();

  ostream& os = *(this->Stream);

  if (!this->WritePrimaryElement(os, indent))
  {
    return 0;
  }

  this->WriteFieldData(indent.GetNextIndent());

  if (this->DataMode == vtkXMLWriter::Appended)
  {
    vtkIndent nextIndent = indent.GetNextIndent();

    this->AllocatePositionArrays();

    if ((this->WritePiece < 0) || (this->WritePiece >= this->NumberOfPieces))
    {
      // Loop over each piece and write its structure.
      int i;
      for (i = 0; i < this->NumberOfPieces; ++i)
      {
        // Open the piece's element.
        os << nextIndent << "<Piece";
        this->WriteAppendedPieceAttributes(i);
        if (this->ErrorCode == vtkErrorCode::OutOfDiskSpaceError)
        {
          this->DeletePositionArrays();
          return 0;
        }
        os << ">\n";

        this->WriteAppendedPiece(i, nextIndent.GetNextIndent());
        if (this->ErrorCode == vtkErrorCode::OutOfDiskSpaceError)
        {
          this->DeletePositionArrays();
          return 0;
        }

        // Close the piece's element.
        os << nextIndent << "</Piece>\n";
      }
    }
    else
    {
      // Write just the requested piece.
      // Open the piece's element.
      os << nextIndent << "<Piece";
      this->WriteAppendedPieceAttributes(this->WritePiece);
      if (this->ErrorCode == vtkErrorCode::OutOfDiskSpaceError)
      {
        this->DeletePositionArrays();
        return 0;
      }
      os << ">\n";